in reply to Re^3: Specifying a range through a variable
in thread Specifying a range through a variable

my @t = $_[0] =~ /^\s*(-?\d+)\s*\.\s*\.(\s*\.)?\s*(-?\d+)\s*$/;

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Be as strict as possible in what you accept. That way, errors are caught as early as possible.
My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In Section Seekers of Perl Wisdom